Ball and socket adjustable mold jacket



Aug. il, 1936. c. H. BESTER BALL .AND SOCKET ADJUSTABLE MOLD JACKET 19552 Sheets-Sheet 1 Filed Aug. 2l,

Aug. l1, 1936. c:` H. BESTER 2,050,778

BALL AND SOCKET ADJUSTABLE MOLD JACKET Filed Aug. 2l, 1935 2Sheecs-Sheet 2 Patented ug. l1, 1936 sieg BALL AND SOCKET ADJUSTABLE(MOLD JACKET' 4 Claims.

This. invention. relatesl to an adjustable mold jacket and moreparticularly the principal object of this invention is to provide a moldjacket wherein the sides are angularly adjustably secured together byball and socket connections permitting each side to adjust itself to thesides of the tapered snap flasks with which they are used.

As a rule, tapered snap flasks in which molds are made. are generallytapered at a five-degree angle, with all the sides having the sametaper.This taper, however, may vary during use, and, with the presentinvention, variations up to and including ten degrees of taper areprovided for, although, if, desired, by following out the principles` ofthis invention, even greater degrees of taper may likewise be taken careof.

This. jacket may be applied to the molds made in the asks Whether theyare made only in two parts known as the cope and the drag, or

. Whether they include additional parts knownl as 2u the cheeks.

l The ball and socket securing and adjusting means of this inventionpermits two motions at once at one end of each side of the jacket,thereby permitting proper fitting of the jacket of the mold even thoughthe taper of the mold may have varied through use or abuse of flask inwhich the mold is made.

With the foregoing and other objects in View, as

will hereinafter become apparent, this invention comprises theconstructions, combinations and arrangements of parts hereinafter setforth, disclosed and shown on the accompanying drawings.

In these drawings:

Figure 1 is a top plan view of the mold and jacket;

Figure 2 is a side view in elevation looking at the lower end of Figure1;

Figure 3 is an elevational view, partly in section, of one of the jacketsides having a handle formed thereon;

Figure 4 is a longitudinal sectional View on a plane indicated by theline 4-4 of Figure 3;

Figure 5 is a transverse sectional View on a plane indicated by the line5-5 of Figure 3; and

Figure 6 is an elevational view of the ballheaded bolt.

There is shown at I0 a mold jacket of this invention, this mold jacketbeing made of two pairs of side pieces II and I2. If the snap flask towhich this mold jacket is to be applied is substantially square inoutline, then the side pieces II and I2 will each be substantiallyidentical in length, but should the snap flask be rectangular 55 withone pair of sides longer than the other pair (Cl. 22e-112) of sides,Ythen the sides I I of the jacket will be longer than the sides. I2 ofthe jacket.

The sides II and I2 are substantially identical except that the side I2may be provided as shown with handle grips I 3 which are undercut as atIll. 5

` The sides of the mold jacket can be made of any suitable material ormetal, such as aluminum, cast iron, steel or the like. Each of the sidepieces of leach jacket has one end I5 formed with a taper of at leastlive degrees, thereby permitting 10 a taper adjustment. Adjacent thistapered end I5, the side piece is provided with a pair of externallyprojecting spaced lugs I6 and Il, the lugs I6v and Il being` providedwith aligned apertures I 3. At the other end I9 of the side piece thereis provided an externally projecting boss 2li which isprovided with asemi-spherical socket or recess 2|. Each socket 2l is centrally providedwith an aperture 22 extending through the side piece, thisaperture 22being taperedl at an angle of at least five degrees from the socket sideof 20" the side piece to the inner side of the side piece.

A ball-headed bolt 23 is provided with a ball head 2d substantially 1A;inch less in diameter than the diameter of the semi-spherical socket 2I. 25 The shank of this bolt 23 is threaded throughout the major portionof its length but left unthreaded or plain as at 26 for at least aslight distance adjacent the ball head 24. TWO nuts 21 and 28 areprovided for adjusting the portion of the bolt 23 30 relative to thelugsI6 and II.

In operation the side pieces v'II and I2 are as` sembled as shown inFigure 1 with the tapered end I5 of one side piece alined with theinside of the adjacent side piece, while the other end I9 35 extendsbeyond the tapered end of the side piece adjacent to that side.

Bolts 23 are placed through the apertures 22, the ball heads 24 restingwithin the sockets 2I while the Shanks extend through the apertures I840 of the lugs I6 and Il and are adjusted relative thereto by means ofthe nuts 21 and 28, thereby permitting the jacket to t the mold sideseven though they may vary slightly in size or in taper.

The handles I3 are provided on the shorter sides 45 whenever the jacketII) is to be made rectangular rather than square so as to enable thejacket to be easily carried and placed on and removed from the mold.

As the result of the taper of at least ve degrecs in the size of theaperture 22 extending through the side pieces and the smooth portion 26of the shank on the bolt 23 and further the taper at the ends I5 of theside pieces, the side pieces will universally adjust themselves to thetaper and angle of the sides of the mold and the bolt will not bind inthe holes 22 due to this taper.

The spaced lugs IS and I'll and the nuts 21 and 28 permit properadjustment of the side pieces relative to each other about the sides ofthe mold. As the result, the snap flasks may taper up to ten degreesWith the construction already shown, but if tapered snap flasks of agreater degree are to be utilized, then the taper of the sides I5 and ofthe size of the aperture 22 may be correspondingly increased to providefor such increase in angularity in the snap asks. The novel features andthe operation ofthis device will be apparent from the foregoingdescription. While the device has been shown and' the structuredescribed in detail, it is obvious that this is not to be considered tothe exact form disclosed and that changes may be made therein the scopeof what is claimed without departing from the spirit of the invention.

Having thus set forth an-d disclosed the nature of this invention, whatis claimed isz- 1. A mold jacket comprising a plurality of side pieces,one end of each side piece being tapered at an angle, means foruniversally and adjustably securing the tapered ends of each side piecetc the other en-d of each adjacent side piece, said means comprising anapertured socket at said other end of each side piece, and a ball headed,bolt extending through-said apertured socket,

and securable to the adjacent side piece adjacent the tapered endthereof, the tapered ends of the side pieces having a pair of externallyextending aligned apertured lugs through which the ball headed boltextends, said ball headed bolt having a pair of nuts thereon', one nutcooperating with each of said lugs.

2. A mold jacket comprising a plurality of side pieces, each side piecehaving one end tapered at an angle, the inner face of the side piecebeing smooth, a pair of externally projecting lugs on the outer face ofthe side piece adjacent the tapered end, a pair of aligned aperturesextending through said lugs, a socket on the other end of each sidepiece projecting from the outer face thereof, an aperture extending fromsaid side through said socket to the inner face of the side piece and aplurality of securing elements mounted in said apertures having ballsengaging said sockets.

3. A mold jacket comprising a plurality of side pieces, each side piecehaving one end tapered at an angle, the inner face of the side piecebeing smooth, a pair of externally projecting lugs on the outer faceofthe side piece adjacent the tapered end, a pair of aligned aperturesextending through said lugs, a socket on the other end of said sidepiece projecting from the outer face thereof, an aperture extending fromsaid side through said socket t-o the inner face of the side piece, anda .pluralityv of ballheaded bolts for adjustably joining said sidepieces together, each ball headed bolt having a plurality of nutsthereon, the ball head of each bolt being received in the socket at oneend of the'side piece, and the shank of each bolt extending through the'aligned' apertures in the lugs at the tapered end ofthe side piece andbeing adjusted relative thereto by said pair of nuts thereon.'v 4. In ajoint for rst and second side pieces of a mold jacket or the like,l thefirst side piece,

having one end tapered at an angle, a'pair of' external lugs on theouter face of the rst side piece adjacent said tapered end'havingapertures therethrough, a socket on the secon-d side piece projectingfrom the outer face thereof, an aperture extending from said second sidepiece through said socket to the inner face of the second side piece,and a securing element mounted in said apertures having a ball engagingsaid socket. Y i

CHARLES H.VBESTER.

